﻿using System;
class StringConcatenation
{
    static void Main()
    {
        string FirstPart = "Hello";
        string SecondPart = "World";
        object Combination = (FirstPart + " " + SecondPart);
        Console.WriteLine(Combination);
        Console.ReadLine();
        string Sentence = ((string)Combination);
        Console.WriteLine(Sentence);
        Console.ReadLine();     
    }
}

